Chapter 4 - Final Checkout
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© 2017
GM1212 Geist Watchdog Wi Instruction Manual
Port Function
Select an output type for the EIA-485 port - either Modbus-Slave or
BACnet-MSTP. Default: Modbus-Slave
Baud Rate
The baud rate is selectable: 1200, 2400, 9600, or 19200. Choose the
appropriate baud rate. Default: 9600
Slave Address
Set a slave address, from 1-254. Set the slave address to 0 disable
EIA-485 port communications. Default: 0 (disabled)
Parity
Selectable: None, Even, Odd. Default: None
BACnet / MSTP Watchdog
If the Watchdog Wi loses BACnet communications, you can program the Watchdog Wi
MGR to automatically attempt to restore communications. The Watchdog Wi must detect
a period of inactivity on the port before it can reset or reboot anything - this help avoid
executing a reboot while someone is performing maintenance on or configuring a unit.
Reset MSTP Port - The Watchdog Wi will reset the MSTP port once it detects no activity
on the port for two minutes.
System Reboot - The Watchdog Wi will reboot itself once it detects no activity on the
MSTP port for fifteen minutes. Default: Disabled
Modbus
If you’re using Modbus RTU over an ethernet connection, you’ll need to designate a slave
unit identifier. Configure that identifier here.
Figure 4-26 Modbus Configuration
Modbus Configuration Options
Option Description
Modbus TCP/UDP Slave Unit Identifier
This designator is used for Modbus RTU over an Ethernet connection. The default slave
unit identifier is 0, which disables this feature. To enable this option, enter a TCP/UDP
